CN203554601U - System for realizing remote monitoring video transmission via natural water pipe - Google Patents
System for realizing remote monitoring video transmission via natural water pipe Download PDFInfo
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- CN203554601U CN203554601U CN201320686170.0U CN201320686170U CN203554601U CN 203554601 U CN203554601 U CN 203554601U CN 201320686170 U CN201320686170 U CN 201320686170U CN 203554601 U CN203554601 U CN 203554601U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 29
- 239000008239 natural water Substances 0.000 title claims abstract description 22
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- 230000008054 signal transmission Effects 0.000 abstract description 5
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- 238000012423 maintenance Methods 0.000 description 4
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Abstract
The utility model provides a system for realizing remote monitoring video transmission via a natural water pipe. The system comprises a pick-up head which is connected with a video signal transmission module. The output end of the video signal transmission module is connected with the water pipe so that a signal is transmitted into the water pipe. A video signal receiving module corresponding to the video signal transmission module is also connected with the water pipe. Advantages of the system are that: the natural water pipe acts as a medium for monitoring video transmission so that establishment of a monitoring video special transmission line is saved, and a video image can be stably and reliably transmitted to a video server from the pick-up head. The system is simple in hardware structure and low in cost.
Description
Technical field
The utility model relates to a kind of, specifically a kind of system that realizes remote monitoring transmission of video by Natural Water pipeline.
Background technology
Instantly, monitoring remote video has spread all over the every aspect in our life, in various streets and lanes, and on road, the medium monitoring camera that is provided with everywhere of building.But, really realize a set of supervisory control system, be need to camera collection to video image by transmission medium, be transferred to office terminal.Due to monitor video image, often data volume is large, and when transmission easily lost video frame image.So, reach reasonable transmission quality, generally all need to set up special monitor video transmission network, make to set up the cost of a set of Active Eyes aspect transmission very high.
At present, the transmission method of remote monitoring video mainly contains: baseband transmission, Optical Fiber Transmission, Internet Transmission, microwave transmission, twisted-pair feeder balance transmission, wide-band co-cable transmit six kinds of transmission meanss frequently.
Video baseband transmission: be the most traditional TV monitoring and controlling transmission means, 0～6MHz video baseband signal is not done to any processing, by the direct transmission of analogue signal of coaxial cable (non-equilibrium).Its advantage is: the loss of short-distance transmission picture signal is little, cheap.Shortcoming: transmission range is short, 300 meters of above high fdrequency component decay are larger, cannot guarantee picture quality; One tunnel vision signal needs cable of cloth, and transmission of control signals needs another cloth cable; Its structure is star structure, and wiring amount is large, difficult in maintenance, poor expandability.
Optical Fiber Transmission: common are simulated light terminal and Digital Optical Terminal, is to solve the tens best settling modes of hundreds of kilometer TV monitoring and controlling transmission even, transmits in optical fiber by video and control signal are converted to light signal.Its advantage is: long transmission distance, decay littlely, interference free performance is best, is applicable to long-distance transmissions.Its shortcoming is: economical not for pilot signal transmission in several kilometers; Bare electrode and maintenance need professional and technical personnel and equipment operating to process, and maintenance technology requires high, is difficult for upgrade expanding.
Internet Transmission: be to solve monitoring transmission means remote between metropolitan area, that some position extremely disperses, adopt MPEG audio frequency and video compressed format transmitting, monitoring signal.Its advantage is: Adoption Network video server, as pilot signal uploading device, has remote monitoring software in Internet network installation just can to supervise and control.Its shortcoming is: be subject to the restriction of the network bandwidth and speed, can only transmit the image of little picture, low image quality; Per secondly can only transmit severally to tens two field pictures, animation effect is fairly obvious and have time delay, cannot accomplish real-time monitoring.
Microwave transmission: be to solve several kilometers of even one of tens kilometers of settling modes that are difficult for the monitoring transmission of wiring place.Adopt the way of frequency modulation modulation or amplitude-modulating modulation, image is carried on high frequency carrier, be converted to frequency electromagnetic waves and aloft transmit.Its advantage is: save wiring and maintaining cables expense, capable of dynamic real-time Transmission broadcast level image.Its shortcoming is: owing to adopting microwave transmission, frequency range is conventional more than 1GHz L-band (1.0～2.0GHz), S-band (2.0～3.0GHz), a Ku wave band (10～12GHz), and transmission environment is that open space is easy to be subject to outside electromagnetic interference; Microwave signal is linear transmission, and centre can not have massif, building to block; Ku wave band is subject to weather effect comparatively serious, and especially sleety weather has serious rain and declines.
Double-strand transmission (balance transmission): be to solve transmission in monitoring image 1Km, one of settling mode of the complicated occasion of electromagnetic environment, processes monitor image signal to transmit by balanced, symmetrical mode.Its advantage is: the dry sorrow performance of simple and easy, with low cost, the anti-common mode that connects up is strong.Its shortcoming is: can only solve 1Km and transmit with interior monitoring image, and twisted-pair feeder can only transmission of one line image, is not suitable for being applied in big-and-middle-sized monitoring; Twisted-pair feeder being fragile ageing resistance is poor, is unsuitable for field transmission; The decay of Double-strand transmission high fdrequency component is larger, and color of image can be subject to very large loss.
Wide-band co-cable transmission: adopt the advanced technologies such as amplitude-modulating modulation, the lift-launch of sound accompaniment frequency modulation, the modulation of fsk data signal, can Jiang Si ten road monitoring images, sound accompaniment, control and alarm signal be integrated into transmitted in both directions in " one " coaxial cable.Its advantage is: take full advantage of the resource space of coaxial cable, Si Shi road audio frequency and video and control signal in same cable transmitted in both directions, realize wide-band co-cable " Integrated Service Digital Network "; Construct simple, easy to maintenance, save in a large number material cost and operating expenses; Frequency multiplexing technique solves long-distance transmission point position disperses, difficult wiring monitoring transmission problem; The radio frequency transmission mode carrier signal that only decays, picture signal decay is very little, and brightness, colourity transmitting synchronous are nested, guarantee that picture quality reaches 4.5 grades of above national standards; Adopt 75 Ω to transmit and make it have very strong anti-interference ability with unbalanced shaft mode, the complicated occasion of electromagnetic environment still can guarantee picture quality.Its shortcoming is: adopt weak signal transmission, wideband modulated terminal needs additional AC220V AC power.
Above six kinds of transmission plans have gone out outside microwave transmission, all need to set up special transmission line, and cost is high.Although microwave transmission need not be set up special transmission line, it is easily subject to external environment condition and disturbs, and transmission reliability is low.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of system that realizes remote monitoring transmission of video by Natural Water pipeline is provided, remote monitoring video image is loaded in an existing stable transmission medium, both can omit the expense of setting up special transmission line, again can be stable monitor video image is transmitted.
The technical scheme providing according to the utility model, the described system that realizes remote monitoring transmission of video by Natural Water pipeline, comprise camera, described camera connects vision signal transmitter module, the output of described vision signal transmitter module is connected to water pipe, signal is transmitted in water pipe, and the video reception module corresponding with vision signal transmitter module is also connected to water pipe.
Concrete, described vision signal transmitter module comprises connection successively: analog to digital converter, source encoder, channel encoder, modulator, underwater acoustic transducer, signal amplifier and signal projector, the input of described analog to digital converter is connected with camera, and the output of described signal projector is connected to water pipe; Described video reception module comprises connection successively: signal receiver, amplifilter, underwater sound reductor, demodulator, channel decoder, source decoder and digital to analog converter, the input of described signal receiver is connected to water pipe.
The utility model has the advantages that: the medium using Natural Water pipeline as a kind of monitor video transmission, both can save the special transmission line of setting up monitor video, video image stabilization can be transferred to video server from camera reliably again.Its hardware configuration is simple, and cost is low.
Accompanying drawing explanation
Fig. 1 is that the utility model is realized the system configuration schematic diagram of remote monitoring transmission of video by Natural Water pipeline.
Fig. 2 is vision signal transmitter module structure chart in the utility model system.
Fig. 3 is video reception modular structure figure in the utility model system.
Fig. 4 is vision signal launching technique flow chart in the utility model system.
Fig. 5 is video signal receiving method flow chart in the utility model system.
Embodiment
In our daily life, Natural Water pipeline is to spread all over the world, and in the ordinary course of things, be to be all filled with stable Natural Water, and water itself is exactly a kind of transmission medium of extraordinary acoustical signal in Natural Water pipeline.The medium that therefore, Natural Water pipeline can be transmitted as a kind of monitor video.
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the utility model is further described.
The utility model is by specific modular converter, and the high-quality acoustical signal that is converted to of video image that monitoring camera is collected, is transmitting by Natural Water pipeline.At receiving terminal, again by specific recovery module, acoustical signal is reduced to video image.As shown in Figure 1, the utility model comprises: vision signal transmitter module 10 and video reception module 20.Camera connects vision signal transmitter module 10, and the output of vision signal transmitter module 10 is connected to water pipe, and the video reception module 20 corresponding with vision signal transmitter module 10 is also connected to water pipe.Vision signal transmitter module 10 be used for by the video analog signal collecting through after A/D conversion by encoder encodes, after modulation, then convert acoustical signal to, after amplifying, by signal projector, signal is transmitted into Natural Water pipeline the inside.Video reception module 20 is mainly used to the acoustical signal that receiving video signals transmitting terminal emits from Natural Water pipeline, again by the acoustical signal receiving after amplification filtering, by underwater sound reductor, be reduced to the signal of telecommunication, after ovennodulation and decoding, send to video server, or be converted to analog signal and show on display.
As shown in Figure 2, described vision signal transmitter module 10 comprises connection successively: analog to digital converter 102, source encoder 103, channel encoder 104, modulator 105, underwater acoustic transducer 106, signal amplifier 107 and signal projector 108, the input of described analog to digital converter 102 is connected with camera 101, and the output of described signal projector 108 is connected to water pipe.Be described as follows:
1. camera 101: for gathering simulation monitoring video image.
2. A/D converter 102: for the simulation monitoring video image that camera 101 is collected, be converted to digital image information, for figure information code afterwards.
3. source encoder 103: for reducing the redundancy of image information, Sequence ' Statistical Property for information source output is found someway, information source output sequence is transformed to the shortest codeword sequence, due to underwater acoustic channel band limiting, can effectively transmits more economically like this.In native system, by the image gathering boil down to JPEG/JPEG2000 form immediately, significantly reduced the time of transmitting every width image.
4. channel encoder 104: the picture signal after source encoder 103 compressions, and owing to having reduced redundancy, correlation declines, and jamproof ability also declines simultaneously, therefore afterwards will carry out chnnel coding, improves antijamming capability.What native system was selected is convolution code, and convolution code is that k bit information weaved into n bit, and k and n are very little conventionally, so time delay is less, is particularly suitable for serial transmission.
5. modulator 105: for the information of signal source is processed and is added to carrier wave, make it become the form that is suitable for transmission.In order to be that signal can transmit in band-limited underwater acoustic channel, modulate.Common modulation system has mPSK, mQAM, OFDM etc.The modulation system that native system is selected is OFDM.First compressing image data coding being obtained is divided into polylith, afterwards each piece is processed, and finally signal will be sent.
6. underwater acoustic transducer 106: for the digital signal after modulator 105 modulation is converted to and can be used in the acoustical signal of propagating at underwater acoustic channel.
7. signal amplifier 107: for the analog signal of underwater acoustic transducer 106 outputs is amplified, strengthen the transmittability of signal in water.
8. signal projector 108: for the signal after signal amplifier 107 is amplified, be transmitted into nature water pipe.
As shown in Figure 3, described video reception module 20 comprises connection successively: signal receiver 201, amplifilter 202, underwater sound reductor 203, demodulator 204, channel decoder 205, source decoder 206, digital to analog converter 207, digital to analog converter 207 connects display 208, and the input of described signal receiver 20 is connected to water pipe.Be described as follows:
1. signal receiver 201: for receiving underwater sound signal from natural water pipe.
2. amplifilter 202: for the underwater sound signal that signal receiver 201 is received, carry out amplification filtering, strengthen the signal receiving, reduce the interfere information in signal.
3. underwater sound reductor 203: for the acoustical signal after amplifilter 202 amplification filtering is converted to the signal of telecommunication, so that subsequent extracted image information.
4. demodulator 204: for the signal of telecommunication receiving from underwater sound reductor 203, from its carrier wave, isolate the information of signal source.
5. channel decoder 205: for the signal source information of separating from demodulator 204, it is carried out to channel-decoding.
6. source decoder 206: for the decoded signal of channel decoder 205, carry out source coding, the image information that generation can show.
7. D/A converter 207: image information is converted to analog signal and for display 208, shows.
8. display 208: for showing the decoded image information of source decoder 206.
As shown in Figure 4, in system described in the utility model, vision signal transmitting flow process is as follows: by camera 101, gather video, again the analog video signal collecting is converted to digital signal through A/D converter 102, then obtain a frame of digital image, by 103 pairs of digital pictures of source encoder, compressed, after conversion, by channel encoder 104, encoded, strengthen the antijamming capability of signal, again through modulator 105 modulation, picture signal is loaded into after carrier wave, by underwater acoustic transducer 106, the signal of telecommunication is converted to acoustical signal again, finally by crossing after signal amplifier 107 amplifies acoustical signal, by signal projector 108, acoustical signal is sent to Natural Water pipeline the inside.
As shown in Figure 5, in system described in the utility model, video reception flow process is as follows: by signal receiver 201, from Natural Water pipeline, receive the acoustical signal that transmitting terminal emits, again by the acoustical signal receiving after amplifilter 202 amplification filtering, by underwater sound reductor 203, be reduced to the signal of telecommunication, again after demodulator 204 demodulation, after channel decoder 205 and source decoder 206 decodings, be converted to analog signal and show on display 208.
Claims (2)
1. by Natural Water pipeline, realize the system of remote monitoring transmission of video, comprise camera, it is characterized in that: described camera connects vision signal transmitter module, the output of described vision signal transmitter module is connected to water pipe, signal is transmitted in water pipe, and the video reception module corresponding with vision signal transmitter module is also connected to water pipe.
2. the system that realizes remote monitoring transmission of video by Natural Water pipeline as claimed in claim 1, it is characterized in that, described vision signal transmitter module comprises connection successively: analog to digital converter, source encoder, channel encoder, modulator, underwater acoustic transducer, signal amplifier and signal projector, the input of described analog to digital converter is connected with camera, and the output of described signal projector is connected to water pipe; Described video reception module comprises connection successively: signal receiver, amplifilter, underwater sound reductor, demodulator, channel decoder, source decoder and digital to analog converter, the input of described signal receiver is connected to water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320686170.0U CN203554601U (en) | 2013-10-31 | 2013-10-31 | System for realizing remote monitoring video transmission via natural water pipe |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320686170.0U CN203554601U (en) | 2013-10-31 | 2013-10-31 | System for realizing remote monitoring video transmission via natural water pipe |
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| CN203554601U true CN203554601U (en) | 2014-04-16 |
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| CN201320686170.0U Expired - Lifetime CN203554601U (en) | 2013-10-31 | 2013-10-31 | System for realizing remote monitoring video transmission via natural water pipe |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110351504A (en) * | 2018-04-04 | 2019-10-18 | 深圳市鸿合创新信息技术有限责任公司 | A kind of recording and broadcasting system Integrated Service Digital Network circuit |
-
2013
- 2013-10-31 CN CN201320686170.0U patent/CN203554601U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110351504A (en) * | 2018-04-04 | 2019-10-18 | 深圳市鸿合创新信息技术有限责任公司 | A kind of recording and broadcasting system Integrated Service Digital Network circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171019 Address after: 201600 room 108, building 4, No. 455, research Exhibition Road, Shanghai, Songjiang District, -85 Patentee after: SHANGHAI BANGXIN IOT TECHNOLOGY CO.,LTD. Address before: 214135 Jiangsu New District of Wuxi City Linghu Road No. 200 China Sensor Network International Innovation Park C building 4 floor Patentee before: JIANGSU R & D CENTER FOR INTERNET OF THINGS |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |
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| CX01 | Expiry of patent term |